reactjs - 当我尝试运行我的 React 应用程序时，npm start 命令不起作用

Question

React 安装正确，其他一切正常，除了当我尝试在终端中运行“npm start”时，它给了我以下错误。

这是我的 package.json 代码：

        {
      "name": "r3-ui",
      "version": "0.1.0",
      "private": true,
      "dependencies": {
        "@testing-library/jest-dom": "^5.11.6",
        "@testing-library/react": "^11.2.2",
        "@testing-library/user-event": "^12.2.2",
        "react": "^17.0.1",
        "react-dom": "^17.0.1",
        "react-scripts": "4.0.1",
        "web-vitals": "^0.2.4"
      },
      "scripts": {
        "start": "react-scripts start",
        "build": "react-scripts build",
        "test": "react-scripts test",
        "eject": "react-scripts eject"
      },
      "eslintConfig": {
        "extends": [
          "react-app",
          "react-app/jest"
        ]
      },
      "browserslist": {
        "production": [
          ">0.2%",
          "not dead",
          "not op_mini all"
        ],
        "development": [
          "last 1 chrome version",
          "last 1 firefox version",
          "last 1 safari version"
        ]
      }
    }

标签： reactjsvisual-studio-codenpm-start

Answer 1

&在 Windows 上命名目录时不要使用。重命名UI & Web Design为UI_Web_Design. 之后的任何内容&都被视为命令。

更改目录名称后运行npm start。